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indian Forest Service (Main)
4 JBNV-B-AGRC
AGRICULTURE
PAPER-II
Time Allowed : Three Hours Maximum Marks : 200
QUESTION PAPER SPECIFIC INSTRUCTIONS
Please read each of the following instructions carefully
before attempting questions
There are EIGHT questions in all, out of which FIVE are to be attempted.
Question Nos. 1 and 5 are compulsory. Out of the remaining SIX questions, THREE are to be
attempted selecting at least ONE question from each of the two Sections A and B.
Attempts of questions shall be counted in sequential order. Unless struck off, attempt of
a question shall be counted even if attempted partly. Any page or portion of the page left blank
in the Question-cum-Answer Booklet must be clearly struck off.
All questions carry equal marks. The number of marks carried by a question/part is indicated
against it.
Answers must be written in ENGLISH only.
JBNV-B-AGRC/38 1 [ P.T.O.
65)
(6)
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(b)
(0
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4. (a)
(b)
(9
SECTION—A
Why is Golgi body called as Golgi body or dictyosome? Briefly describe the
morphology and functions of Golgi body.
Give a concise account on merits and demerits of mass selection.
Describe the major differences between scientifically produced seed and the
grain (when used as seed). Also discuss the quality characteristics of seed.
Explain diffusion pressure and its significance in plants. Also discuss the
various factors influencing the rate of diffusion.
Explain the right approaches for breeding of crop varieties for wide
adaptability.
What do you understand by somatic and meiotic crossing-over? Discuss the
mechanism of meiotic crossing-over.
Discuss the technique of producing virus-free nucleus stock in potato.
Briefly discuss the biotechnological approaches for increasing yield and quality
of oil.
Distinguish between imbibition and permeability. Also discuss the importance
of imbibition in plants and the factors affecting it.
What do you understand by spontaneous mutations, induced mutations and
mutation rate? Describe the practical applications and significance of
mutations in cereal crops.
Enlist the breeding methods for disease resistance in crop plants and discuss
hybridization method in detail with suitable examples.
What is cytoplasmic-genetic male sterility? Discuss about the development of
new male sterile and restorer lines with the help of examples and suitable
diagrams. Also explain the limitations of cytoplasmic-genetic male sterility in
hybrid seed production of crops.
Write in detail about the mechanism of water absorption in plants. Explain the
factors influencing the rate of water absorption.
Explain in situ and ex situ germplasm conservations.
JBNV-B-AGRC/38 2
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10
15
15
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6. (a)
(b)
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SECTION—B
Write in detail about different phases of growth and growth curve. Also explain
the determinate and indeterminate types of growth in crops with suitable
examples.
Write the symptoms and management of late blight and golden cyst nematode
in potato.
Discuss the importance of fruits and vegetables in human nutrition.
Write the symptoms and management of shoot and fruit borer in brinjal and
diamondback moth in cabbage.
How is food consumption trend in Indian population changing in relation with
availability of crop produces and socio-economic factors?
Write in detail about the occurrence, transport, site of synthesis and bioassay
of abscisic acid in plants. Also explain the effect of abscisic acid on various
plant physiological processes.
Discuss the following in respect of turmeric cultivation :
(0 Climate and soil
(1) Varieties, seed rate and planting
(iii) Manures and fertilizers
(iv) Cultural operations
15
(v) Post-harvest processing 3x5=15
Discuss in detail about apple scab and its management.
Enumerate the major insect-pests which affect wheat crop produce
qualitatively and quantitatively during storage. Describe the preventive and
control measures for management of storage insect-pests in cereals.
Discuss the following post-harvest processes with reference to fruits and
vegetables :
8 Curing
(ii) Degreening
(iii) Pre-cooling
(iv) Disinfestation
10
15
(v) Sorting and grading 3x5=15
Explain the role of ethylene in plants.
10
JBNV-B-AGRC/38 3 [PEO
(a) Describe the following :
0 NAFED
(ii) The Targeted Public Distribution System
(iii) Buffer stock operations
(iv) Coffee Board
(v) Food production and nutrition
(b) Give a lucid account on the principal biotic agents and the methods of their
use in horticultural crops.
(c) Briefly discuss the methods of lawn making in India.
kkk
JBNV-B-AGRC/38 4
3x5=15
15
10
25SS—336
€
